Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture

Detalhes bibliográficos
Autor(a) principal: Menezes, Rodrigo Carvalho
Data de Publicação: 2015
Outros Autores: Alves, Eveline Bueno, Casagrande, Daniel Rume, Lara, Márcio André Stefanelli, Evangelista, Antônio Ricardo, Bernardes, Thiago Fernandes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Scientia Agrícola (Online)
Texto Completo: https://www.revistas.usp.br/sa/article/view/106679
Resumo: Gradual reduction of legumes in mixed tropical pastures requires periodic oversowing. Exploiting the carrying capacity of grass for an extra year after the disappearance of legumes can be economically advantageous to the farmer. This study aimed to evaluate the productivity of Xaraés palisadegrass (Brachiaria brizantha) pastures in response to its historical association with stylo (Stylosanthes guianensis) under two canopy heights to determine whether different grazing management conditions affect the defoliation pattern left by grazing animals. The split-plot experimental design was used, with the historical botanical composition (HBC) (24, 34, 45 and 52 % legume composition) corresponding to the main plots and the canopy frequency of defoliation determined at heights of 30 and 45 cm for Xaraés palisadegrass corresponding to the subplots with two replicates (500 m2) grazed by Tabapuã cows. Pastures with over 34 % stylo in the botanical composition remained productive for one year after legume disappearance, accumulating more than 8 mg ha−1 of forage per year. Xaraés palisadegrass pastures at a height of 30 cm provided better canopy structure, with 64 % less stem production and 43 % less dead material. The 30-cm pre-grazing canopy height provided a grazing environment conducive to forage intake by animals that resulted in efficient use of the pasture. In response to the improved canopy structure, the cows grazed an average of 60 fewer minutes. A HBC greater than 34 % of legumes in the pastures allows for the postponement of legume oversowing until the next growing season.
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spelling Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture Gradual reduction of legumes in mixed tropical pastures requires periodic oversowing. Exploiting the carrying capacity of grass for an extra year after the disappearance of legumes can be economically advantageous to the farmer. This study aimed to evaluate the productivity of Xaraés palisadegrass (Brachiaria brizantha) pastures in response to its historical association with stylo (Stylosanthes guianensis) under two canopy heights to determine whether different grazing management conditions affect the defoliation pattern left by grazing animals. The split-plot experimental design was used, with the historical botanical composition (HBC) (24, 34, 45 and 52 % legume composition) corresponding to the main plots and the canopy frequency of defoliation determined at heights of 30 and 45 cm for Xaraés palisadegrass corresponding to the subplots with two replicates (500 m2) grazed by Tabapuã cows. Pastures with over 34 % stylo in the botanical composition remained productive for one year after legume disappearance, accumulating more than 8 mg ha−1 of forage per year. Xaraés palisadegrass pastures at a height of 30 cm provided better canopy structure, with 64 % less stem production and 43 % less dead material. The 30-cm pre-grazing canopy height provided a grazing environment conducive to forage intake by animals that resulted in efficient use of the pasture. In response to the improved canopy structure, the cows grazed an average of 60 fewer minutes. A HBC greater than 34 % of legumes in the pastures allows for the postponement of legume oversowing until the next growing season. Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz2015-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/sa/article/view/10667910.1590/0103-9016-2015-0039Scientia Agricola; v. 72 n. 6 (2015); 484-488Scientia Agricola; Vol. 72 Núm. 6 (2015); 484-488Scientia Agricola; Vol. 72 No. 6 (2015); 484-4881678-992X0103-9016reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/sa/article/view/106679/105295Copyright (c) 2015 Scientia Agricolainfo:eu-repo/semantics/openAccessMenezes, Rodrigo CarvalhoAlves, Eveline BuenoCasagrande, Daniel RumeLara, Márcio André StefanelliEvangelista, Antônio RicardoBernardes, Thiago Fernandes2015-10-27T16:19:02Zoai:revistas.usp.br:article/106679Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2015-10-27T16:19:02Scientia Agrícola (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
title Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
spellingShingle Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
Menezes, Rodrigo Carvalho
title_short Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
title_full Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
title_fullStr Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
title_full_unstemmed Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
title_sort Xaraés palisadegrass remains productive after the disappearance of stylo in tropical legume-grass pasture
author Menezes, Rodrigo Carvalho
author_facet Menezes, Rodrigo Carvalho
Alves, Eveline Bueno
Casagrande, Daniel Rume
Lara, Márcio André Stefanelli
Evangelista, Antônio Ricardo
Bernardes, Thiago Fernandes
author_role author
author2 Alves, Eveline Bueno
Casagrande, Daniel Rume
Lara, Márcio André Stefanelli
Evangelista, Antônio Ricardo
Bernardes, Thiago Fernandes
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Menezes, Rodrigo Carvalho
Alves, Eveline Bueno
Casagrande, Daniel Rume
Lara, Márcio André Stefanelli
Evangelista, Antônio Ricardo
Bernardes, Thiago Fernandes
description Gradual reduction of legumes in mixed tropical pastures requires periodic oversowing. Exploiting the carrying capacity of grass for an extra year after the disappearance of legumes can be economically advantageous to the farmer. This study aimed to evaluate the productivity of Xaraés palisadegrass (Brachiaria brizantha) pastures in response to its historical association with stylo (Stylosanthes guianensis) under two canopy heights to determine whether different grazing management conditions affect the defoliation pattern left by grazing animals. The split-plot experimental design was used, with the historical botanical composition (HBC) (24, 34, 45 and 52 % legume composition) corresponding to the main plots and the canopy frequency of defoliation determined at heights of 30 and 45 cm for Xaraés palisadegrass corresponding to the subplots with two replicates (500 m2) grazed by Tabapuã cows. Pastures with over 34 % stylo in the botanical composition remained productive for one year after legume disappearance, accumulating more than 8 mg ha−1 of forage per year. Xaraés palisadegrass pastures at a height of 30 cm provided better canopy structure, with 64 % less stem production and 43 % less dead material. The 30-cm pre-grazing canopy height provided a grazing environment conducive to forage intake by animals that resulted in efficient use of the pasture. In response to the improved canopy structure, the cows grazed an average of 60 fewer minutes. A HBC greater than 34 % of legumes in the pastures allows for the postponement of legume oversowing until the next growing season.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/sa/article/view/106679
10.1590/0103-9016-2015-0039
url https://www.revistas.usp.br/sa/article/view/106679
identifier_str_mv 10.1590/0103-9016-2015-0039
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/sa/article/view/106679/105295
dc.rights.driver.fl_str_mv Copyright (c) 2015 Scientia Agricola
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2015 Scientia Agricola
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
publisher.none.fl_str_mv Universidade de São Paulo. Escola Superior de Agricultura Luiz de Queiroz
dc.source.none.fl_str_mv Scientia Agricola; v. 72 n. 6 (2015); 484-488
Scientia Agricola; Vol. 72 Núm. 6 (2015); 484-488
Scientia Agricola; Vol. 72 No. 6 (2015); 484-488
1678-992X
0103-9016
reponame:Scientia Agrícola (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Scientia Agrícola (Online)
collection Scientia Agrícola (Online)
repository.name.fl_str_mv Scientia Agrícola (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv scientia@usp.br||alleoni@usp.br
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